linux-kernel - Re: [PATCH v3 1/7] drm/rockchip: Change the scl_vop_cal_scl_fac to pass drm_format

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <5966b22a64602ce297f9a3b4bfd4ff7af72bab32.camel@bootlin.com>
Date:   Mon, 20 May 2019 11:42:14 +0200
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     Maxime Ripard <maxime.ripard@...tlin.com>,
        Daniel Vetter <daniel.vetter@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>
Cc:     linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v3 1/7] drm/rockchip: Change the scl_vop_cal_scl_fac to
 pass drm_format_info

Hi,

On Thu, 2019-05-16 at 12:31 +0200, Maxime Ripard wrote:
> The Rockchip VOP driver has a function, scl_vop_cal_scl_fac, that will
> lookup the drm_format_info structure from the fourcc passed to it by its
> caller.
> 
> However, its only caller already derefences the drm_format_info structure
> it has access to to retrieve that fourcc. Change the prototype of that
> function to pass the drm_format_info structure directly, removing the need
> for an extra lookup.
> 
> Suggested-by: Philipp Zabel <p.zabel@...gutronix.de>
> Signed-off-by: Maxime Ripard <maxime.ripard@...tlin.com>

Reviewed-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>

Cheers,

Paul

> ---
>  drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 11 ++++-------
>  1 file changed, 4 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index 20a9c296d027..9c0d6b367709 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -315,14 +315,13 @@ static uint16_t scl_vop_cal_scale(enum scale_mode mode, uint32_t src,
>  
>  static void scl_vop_cal_scl_fac(struct vop *vop, const struct vop_win_data *win,
>  			     uint32_t src_w, uint32_t src_h, uint32_t dst_w,
> -			     uint32_t dst_h, uint32_t pixel_format)
> +			     uint32_t dst_h, const struct drm_format_info *info)
>  {
>  	uint16_t yrgb_hor_scl_mode, yrgb_ver_scl_mode;
>  	uint16_t cbcr_hor_scl_mode = SCALE_NONE;
>  	uint16_t cbcr_ver_scl_mode = SCALE_NONE;
> -	int hsub = drm_format_horz_chroma_subsampling(pixel_format);
> -	int vsub = drm_format_vert_chroma_subsampling(pixel_format);
> -	const struct drm_format_info *info;
> +	int hsub = drm_format_horz_chroma_subsampling(info->format);
> +	int vsub = drm_format_vert_chroma_subsampling(info->format);
>  	bool is_yuv = false;
>  	uint16_t cbcr_src_w = src_w / hsub;
>  	uint16_t cbcr_src_h = src_h / vsub;
> @@ -331,8 +330,6 @@ static void scl_vop_cal_scl_fac(struct vop *vop, const struct vop_win_data *win,
>  	uint32_t val;
>  	int vskiplines;
>  
> -	info = drm_format_info(pixel_format);
> -
>  	if (info->is_yuv)
>  		is_yuv = true;
>  
> @@ -856,7 +853,7 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
>  	if (win->phy->scl)
>  		scl_vop_cal_scl_fac(vop, win, actual_w, actual_h,
>  				    drm_rect_width(dest), drm_rect_height(dest),
> -				    fb->format->format);
> +				    fb->format);
>  
>  	VOP_WIN_SET(vop, win, act_info, act_info);
>  	VOP_WIN_SET(vop, win, dsp_info, dsp_info);
> 
> base-commit: a802303934b3bd4df6e2fc8bf2e4ebced1c37556
-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com